Application of Beam Pumping Wells’ Energy-Saving Rebuilding Techniques in Daqing Oilfield

Abstract Daqing Oilfield is the largest continental oilfield of China. And beam pumping system was the main artificial lift method of the oilfield. Till the end of 2008, the number of producers has reached more than 48,000 in the whole oilfield, in which 80% wells applied beam pumping system. Statistics indicated that, the averaged efficiency of beam pumping systems was only about 25% for the whole oilfield resulted in large quantity of power waste. Moreover, the power consumption of beam pumping wells was about one third of the total power consumption of the oilfield development which was the largest part of operation cost. In the past tens years, Daqing Oilfield invested huge funding to improve beam pumping equipments’ energy-saving techniques. And a series of energy saving rebuilding techniques were developed including two innovative beam pump units, three energy-saving motors, and two new control designs. This paper presented these energy saving techniques in details. Application in more than 2,000 producers indicated that the efficiency of beam pumping systems was improved considerably after using these innovative energy-saving rebuilding techniques.